APA   Click to copy
Karle, I., Gopi, H. N., & Balaram, P. (2002). Infinite pleated β-sheet formed by the β-hairpin Boc-βPhe-βPhe-DPro-Gly-βPhe-βPhe-OMe. Proceedings of the National Academy of Sciences, 99, 5160–5164.

Chicago/Turabian   Click to copy
Karle, Isabella, Hosahudya N Gopi, and Padmanabhan Balaram. “Infinite Pleated β-Sheet Formed by the β-Hairpin Boc-ΒPhe-ΒPhe-DPro-Gly-ΒPhe-ΒPhe-OMe.” Proceedings of the National Academy of Sciences 99 (2002): 5160–5164.

MLA   Click to copy
Karle, Isabella, et al. “Infinite Pleated β-Sheet Formed by the β-Hairpin Boc-ΒPhe-ΒPhe-DPro-Gly-ΒPhe-ΒPhe-OMe.” Proceedings of the National Academy of Sciences, vol. 99, National Acad Sciences, 2002, pp. 5160–64.

@article{karle2002a,
  title = {Infinite pleated β-sheet formed by the β-hairpin Boc-βPhe-βPhe-DPro-Gly-βPhe-βPhe-OMe},
  year = {2002},
  journal = {Proceedings of the National Academy of Sciences},
  pages = {5160--5164},
  publisher = {National Acad Sciences},
  volume = {99},
  author = {Karle, Isabella and Gopi, Hosahudya N and Balaram, Padmanabhan}
}